Hmmm... That's a darn shame. We've had my wife's XT since it had 5k miles on the ticker (dealer driven). Ever since we bought it, I've always user Mobil 1 and changed the oil every 5,000 miles (I think twice I've changed at roughly 10,000 miles). My wife is a "spirited" driver, so the turbo gets a workout, but we've never had any issues. It's still pulling strong at ~92,000 miles.
Well, good luck with your new Subie. VT is a great place to own one!